Introduction. Homocysteine is an amino acid that is formed in the metabolism of methionine as the quantitatively most important metabolite. Its chemical structure has been known for 90 years and its biological roles are still being investigated. Under normal conditions, homocysteine is present in plasma at the concentration of 5 - 9 mmol/l. When th...

By Bojana Miladinović, Vladana Živković, Dušanka Kitić, Maja Nikolić